The U.K. is on royal baby watch once again as the Duke and Duchess of Sussex are expecting their first child any day now. The couple is keeping the details very private, including the baby's sex, but that hasn't stopped people from placing their bets. The favorite name among gamblers is a tribute to Harry's mother, Diana. British bookmaker William Hill says while most people put their money on Diana, other names could be more lucrative. InsideEdition.com's Mara Montalbano has more.